Our Natural Resources, and Their Conservation |
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Our Natural Resources, and Their Conservation Richard L (Richard Lewis) Neuberger No preview available - 2021 |
Our Natural Resources, and Their Conservation Richard L (Richard Lewis) Neuberger No preview available - 2021 |
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950 grizzlies acreage acres American ample animals atomic energy automobiles birds bison Bonneville Dam California camping cedars cent cities Clearwater River coal Columbia conservation conservationists continued country's deposits domain erosion farm federal fish Forest Ranger named Forest Reserves Forest Service fuel gallons Gifford Pinchot grass grazing ground-water groves grow homesteaders hydroelectric industrial iron irrigation Lake land Lewis and Clark livestock logging lumber lumbermen Mesabi mountain lions National Forests National Parks National-Forest natural resources Neuberger oil shales Olympic National Park once Oregon outdoor passenger pigeon Pinchot pitchblende plants plowed pollution population prairie President produced Public Affairs Pamphlets pumps Quan railroads recreation reservoir rivers Roosevelt runoff salmon salt water San Joaquin San Joaquin Valley Save saw timber soil steel Theodore Roosevelt tons trees and shrubs United upland uranium valleys wastes water power watershed was forested West wild Wilderness Areas Wildlife Willamette River York